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従業員Beanクラス：SOLRJ-6.0.0：Beanオブジェクトの仲間リストがnullポインタ例外を与えているBeanオブジェクトの挿入
public class Employee2 {
private String id;
private String name;
private String designation;
private double salary;
private double totalExperience;
// private Address2 address2;
private Collection<Technology2> technologies2;
private String content_type = "employee2";
public Employee2() {
super();
}
public Employee2(String id, String name, String designation, double salary, double totalExperience,
Collection<Technology2> technologies2) {
super();
this.id = id;
this.name = name;
this.designation = designation;
this.salary = salary;
this.totalExperience = totalExperience;
// this.address2 = address2;
this.technologies2 = technologies2;
}
/**
* @return the id
*/
public String getId() {
return id;
}
/**
* @param id the id to set
*/
@Field (value = "id")
public void setId(String id) {
this.id = id;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
@Field (value = "name")
public void setName(String name) {
this.name = name;
}
/**
* @return the designation
*/
public String getDesignation() {
return designation;
}
/**
* @param designation the designation to set
*/
@Field (value = "designation_s")
public void setDesignation(String designation) {
this.designation = designation;
}
/**
* @return the salary
*/
public double getSalary() {
return salary;
}
/**
* @param salary the salary to set
*/
@Field (value = "salary_d")
public void setSalary(double salary) {
this.salary = salary;
}
/**
* @return the totalExperience
*/
public double getTotalExperience() {
return totalExperience;
}
/**
* @param totalExperience the totalExperience to set
*/
@Field (value = "totalExperience_d")
public void setTotalExperience(double totalExperience) {
this.totalExperience = totalExperience;
}
// /**
// * @return the address2
// */
// public Address2 getAddress() {
// return address2;
// }
//
// /**
// * @param address2 the address2 to set
// */
// @Field (child = true)
// public void setAddress(Address2 address2) {
// this.address2 = address2;
// }
/**
* @return the technologies2
*/
public Collection<Technology2> getTechnologies2() {
return technologies2;
}
/**
* @param technologies2 the technologies2 to set
*/
@Field (child = true)
public void setTechnologies2(Collection<Technology2> technologies2) {
this.technologies2 = technologies2;
}
/**
* @return the content_type
*/
public String getContent_type() {
return content_type;
}
/**
* @param content_type the content_type to set
*/
@Field(value="content_type_t")
public void setContent_type(String content_type) {
this.content_type = content_type;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Employee2 [id=" + id + ", name=" + name + ", designation=" + designation + ", salary=" + salary +
", totalExperience=" + totalExperience + ", technologies2=" + this.getTechnologies(technologies2) +
", content_type=" + content_type + "]";
}
private String getTechnologies(Collection<Technology2> technologies2) {
String strTechnologies = "[";
for(Technology2 technology: technologies2) {
strTechnologies = strTechnologies+technology.toString();
}
return strTechnologies+"]";
}
}
技術Beanクラス：
public class Technology2 {
private String id;
private String name;
private int experience;
private boolean certified;
private String content_type = "technology2";
public Technology2() {
super();
}
public Technology2(String id, String name, int experience, boolean certified) {
super();
this.id = id;
this.name = name;
this.experience = experience;
this.certified = certified;
}
/**
* @return the id
*/
public String getId() {
return id;
}
/**
* @param id the id to set
*/
@Field(value="id")
public void setId(String id) {
this.id = id;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
@Field(value="name")
public void setName(String name) {
this.name = name;
}
/**
* @return the experience
*/
public int getExperience() {
return experience;
}
/**
* @param experience the experience to set
*/
@Field(value="experience_i")
public void setExperience(int experience) {
this.experience = experience;
}
/**
* @return the certified
*/
public boolean getCertified() {
return certified;
}
/**
* @param certified the certified to set
*/
@Field(value="certified_b")
public void setCertified(boolean certified) {
this.certified = certified;
}
/**
* @return the content_type
*/
public String getContent_type() {
return content_type;
}
/**
* @param content_type the content_type to set
*/
@Field(value="content_type_t")
public void setContent_type(String content_type) {
this.content_type = content_type;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Technology2 [id=" + id + ", name=" + name + ", experience=" + experience + ", certified=" + certified +
", content_type=" + content_type + "]";
}
Employee BeanにネストされたAddress Beanがある場合、Bean挿入メソッドが正常に機能していますが、この例ではEmployee BeanがCollection of Technology Beanをネストしていますが、これは例外として以下の行で発生しています
UpdateResponse response = solrClient.addBean（bean）;
挿入方法：
public <T> boolean insert (T bean) {
try {
UpdateResponse response = solrClient.addBean(bean);
System.out.println("insert bean ElapsedTime: " + response.getElapsedTime());
solrClient.commit();
return true;
} catch (IOException | SolrServerException e) {
e.printStackTrace();
}
return false;
}
それはヌル・ポインタ例外を返すは、以下Employee2
Employee2 [ID = EE130S、名前= Vulrp、指定= NjLtKのtoString値です。 、 salary = 127334.59626719051、totalExperience = 49.989444163266164、 technologies2 = [Technology2 [id = 0TE130S、name = uyIOFlh、experience = 21、 certified = true、content_type = technology2] Technology2 [ID = 1TE130S、 、名前= FmZJak、体験= 43、認定= false、 content_type = technology2] Technology2 [ID = 2TE130S、name = ddJbOXg、 エクスペリエンス= 11、認定= false、content_type = technology2] Technology2 [ ID = 3TE130S、名前= rIxumUe、経験= 5、認定=真、 CONTENT_TYPE = technology2]]、CONTENT_TYPE = employee2]
それは、例外の下の原因となっている。
java.lang.NullPointerException
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.storeType(DocumentObjectBinder.java:243)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.<init>(DocumentObjectBinder.java:183)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.collectInfo(DocumentObjectBinder.java:144)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getDocFields(DocumentObjectBinder.java:123)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.toSolrInputDocument(DocumentObjectBinder.java:76)
at org.apache.solr.client.solrj.SolrClient.addBean(SolrClient.java:277)
at org.apache.solr.client.solrj.SolrClient.addBean(SolrClient.java:259)
at com.opteamix.buildpal.poc.SampleSolrDAO.insert(SampleSolrDAO.java:62)
at com.opteamix.buildpal.poc.SampleSolrDAOTest.testEmployees2Insert(SampleSolrDAOTest.java:94)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:243)
at junit.framework.TestSuite.run(TestSuite.java:238)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
はい、そのために私はバグを鳴らします。まあ、SolrJコードごとに、1つ以上の子がある場合は、solrClient.addBean（bean）;手動の例外による方法：それ以上の子がサポートされていない。しかし、SolrInputDocumentでは複数の子を追加できます。私は、複数のBeanを関連付けるBeanの挿入をサポートするリフレクションコードを書くことを考えています。リフレクションコードはこのURLに記述されているコードの種類を処理します：[https://github.com/ lucidworks/solrj-nested-docs/blob/master/NestedDocs2.java] –
はい、それは良いようです。 – Coder
http://stackoverflow.com/questions/37677538/how-to-insert-bean-object-which-has-many-child-bean-in-solrj/37678532#37678532 –